Chromium (hexavalent)
Bella Vista City Water System
Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).
41
Samples
0
Samples exceeding legal limit (MCL)
41
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.410 ppb | 12 | 12 | 0.230 ppb - 0.640 ppb |
| 2015 | 0.462 ppb | 29 | 29 | 0.260 ppb - 0.710 ppb |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.02 ppb
The EWG Health Guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-07-10 | 3061521 | 0.260 ppb |
| 2014-07-10 | 3061526 | 0.430 ppb |
| 2014-07-10 | 3061588 | 0.230 ppb |
| 2014-07-10 | 3061555 | 0.360 ppb |
| 2014-07-10 | 3061534 | 0.280 ppb |
| 2014-07-10 | 3061583 | 0.570 ppb |
| 2014-07-10 | 3061513 | 0.570 ppb |
| 2014-07-10 | 3061540 | 0.290 ppb |
| 2014-07-10 | 3061570 | 0.640 ppb |
| 2014-07-10 | 3061508 | 0.510 ppb |
| 2014-07-10 | 3061562 | 0.350 ppb |
| 2014-07-10 | 3061575 | 0.430 ppb |
| 2015-01-21 | 3174066 | 0.500 ppb |
| 2015-01-21 | 3174461 | 0.530 ppb |
| 2015-01-21 | 3174481 | 0.460 ppb |
| 2015-01-21 | 3174385 | 0.440 ppb |
| 2015-01-21 | 3174102 | 0.460 ppb |
| 2015-01-21 | 3174112 | 0.390 ppb |
| 2015-01-21 | 3174435 | 0.700 ppb |
| 2015-01-21 | 3174449 | 0.260 ppb |
| 2015-01-21 | 3174121 | 0.270 ppb |
| 2015-01-21 | 3174402 | 0.450 ppb |
| 2015-01-21 | 3174423 | 0.540 ppb |
| 2015-01-21 | 3174472 | 0.620 ppb |
| 2015-01-21 | 3174093 | 0.400 ppb |
| 2015-01-21 | 3174514 | 0.350 ppb |
| 2015-01-21 | 3174084 | 0.260 ppb |
| 2015-01-27 | 3177678 | 0.350 ppb |
| 2015-01-27 | 3177651 | 0.270 ppb |
| 2015-01-27 | 3177674 | 0.690 ppb |
| 2015-01-27 | 3177668 | 0.300 ppb |
| 2015-01-27 | 3177607 | 0.710 ppb |
| 2015-07-14 | 3280226 | 0.520 ppb |
| 2015-07-14 | 3280385 | 0.480 ppb |
| 2015-07-14 | 3280356 | 0.590 ppb |
| 2015-07-14 | 3280648 | 0.480 ppb |
| 2015-07-14 | 3280239 | 0.510 ppb |
| 2015-07-14 | 3280457 | 0.420 ppb |
| 2015-07-14 | 3281559 | 0.270 ppb |
| 2015-07-14 | 3280307 | 0.710 ppb |
| 2015-07-14 | 3280257 | 0.470 ppb |